The MVR-300 audible and visual alarms alert occupants and simultaneously communicate to Building Management Systems/Building Automation Systems (BMS/BAS). Two on-board relays can be used to close valves, activate alarm devices and exhaust fans or initiate emergency calls to rescue teams.

The on-board Modbus RTU interface provides real-time information about concentrations, status and settings. It also enables custom configuration of the MVR-300 to any application specific requirements using multiple Modbus registers.

The MVR-300 is designed for easy installation and simple maintenance.

IMPORTANT NOTE: Large refrigerant leaks into occupied spaces can reach concentrations that pose a suffocation risk to the occupants. The MVR-300 is not designed to be used as the sole safety device for this risk. Safety of the occupants also must take a system designed approach that includes things such as ventilation, detection, early warning, mitigation and design redundancy.

Detectable Gases

R-32

Measuring Ranges

5,000 ppm

Housing

Flush mount, white ABS, fits in most 2-gang electrical back-boxes

Size (L x W x D, approx.)

6" x 4.1" x 1.75" (150 x 105 x 45 mm) including bezel

Protection

Indoor: IP40, NEMA 1

Weight (approx.)

8 oz (230 g)

Power

100 to 240 VAC, 50/60 Hz, 4 W max.

Indicator

Tri-color LED: green, amber, red

Buzzer

80 dB at 12" (30 cm)

Relay

Two SPDT: low alarm and high alarm / fault, normal or fail-safe; configurable